{"id":"CVE-2021-24687","aliases":["EUVD-2021-11599","GHSA-vvvh-5w82-4q4g"],"status":"published","title":"Modern Events Calendar Lite \u003c 5.22.2 - Admin+ Stored Cross-Site Scripting","description":"The Modern Events Calendar Lite WordPress plugin before 5.22.2 does not escape some of its settings before outputting them in attributes, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00617,"percentile":0.50097,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-04T11:20:24Z","modified":"2026-06-17T03:40:28Z","products":[{"vendor":"unknown","product":"modern events calendar lite"},{"vendor":"webnus","product":"modern_events_calendar_lite"},{"vendor":"webnus/","product":"modern events calendar lite"}],"references":[{"url":"https://wpscan.com/vulnerability/300ba418-63ed-4c03-9031-263742ed522e","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24687"},{"url":"https://github.com/advisories/GHSA-vvvh-5w82-4q4g"}],"sources":{"cve":[{"id":"CVE-2021-24687","title":"Modern Events Calendar Lite \u003c 5.22.2 - Admin+ Stored Cross-Site Scripting","description":"The Modern Events Calendar Lite WordPress plugin before 5.22.2 does not escape some of its settings before outputting them in attributes, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.","status":"published","published":"2021-10-04T11:20:24Z","modified":"2024-08-03T19:42:16.15Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11599","description":"The Modern Events Calendar Lite WordPress plugin before 5.22.2 does not escape some of its settings before outputting them in attributes, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.","status":"published","published":"2021-10-04T11:20:24Z","modified":"2024-08-03T19:42:16Z","updated_at":"2026-11-03T03:24:56.31224Z"}],"ghsa":[{"id":"GHSA-vvvh-5w82-4q4g","title":"The Modern Events Calendar Lite WordPress plugin before 5.22.2 does not escape some of its...","description":"The Modern Events Calendar Lite WordPress plugin before 5.22.2 does not escape some of its settings before outputting them in attributes, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.","status":"published","published":"2022-05-24T19:16:30Z","modified":"2023-01-30T05:02:32Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:39.888016Z"}],"nvd":[{"id":"CVE-2021-24687","description":"The Modern Events Calendar Lite WordPress plugin before 5.22.2 does not escape some of its settings before outputting them in attributes, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.","status":"published","published":"2021-10-04T12:15:09.13Z","modified":"2026-06-17T03:40:28.697Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:59.314106Z"}]}}